Download

For easy access of the data a sample python script and sample matlab script for loading the data can be found here: [to be added soon]

The file names are in this format: subjectX_countY where X refers to the subject number and Y to the data recording (the counts are consecutive in time). The time between ‘counts’ was excluded due to occlusion or sensor failure (as described in [1]).

However after subject 63, the naming convention changes to : subjectXy_countY where y shows the section of the dataset. Between each ‘y’ the hardware was resynchronised.

e.g. subject631_count_1, subject632_count_1, subject633_count_1, subject633_count_2 contain all the data from subject 63, in consecutive order. The system was resynchronised between subject631_count_1 and subject632_count_1, between subject632_count_1 and subject633_count_1. However NOT between subject633_count_1 and subject633_count_2 .

The data is stored in the following variables:

Sampling frequency was 200 Hz therefore each sample in the data is 1/200 = 0.05 s.

‘dataEndInd’ – sample number at the end of this data, this index allows one to calculate the time between ‘counts’
‘dataStartInd’ – sample number at the start of this data, this index allows one to calculate the time between ‘counts’
‘iSplitCount’ – the current count for this subject

‘OnGroundPhase_left’ – One hot encode for periods of time where the left foot is on the ground
‘OffGroundPhase_left’- One hot encode for periods of time where the left foot is off the ground
‘OnGroundPhase_right’- One hot encode for periods of time where the right foot is on the ground
‘OffGroundPhase_right’- One hot encode for periods of time where the right foot is off the ground

NB: During the walking activity the transition from OnGroundPhase_left to OffGroundPhase_left would correspond to Toe off and the transition from OffGroundPhase_left to OnGroundPhase_left would correspond to heel strike. The same for the right foot.

‘labelConversion’ – list of all possible labels of tasks (see table 4 in [1])
‘initial_activity_labels_all_str’ – current task per sample
‘initial_activity_labels_all_no’ – the start of the current task per sample as in index of labelConversion

(if relevant/exisiting) ‘cycleDuration’ – duration of all cycles within the cycle activity per foot
(if relevant/exisiting) ‘cyclecount’ – number of cycles within each cycle activity per foot